Project supported by the National Natural Science Foundation of China (Grant Nos. 61625501, 61427816, and 11904121), the Open Fund of the State Key Laboratory of High Field Laser Physics (SIOM), China, the Program for JLU Science and Technology Innovative Research Team (JLUSTIRT), China (Grant No. 2017TD-21), and Fundamental Research Funds for the Central Universities of China.
Li Helong1, 2, Yao Danwen2, Wang Siqi2, Fu Yao2, Xu Huailiang2, 3, †
(a) Schematic diagram for the oxygen atomic lasing pumped by the 266-nm laser.[26] (b) Energy output of the backward and forward air lasing in the absence of the dissociating pulse, and (c) that of the backward air lasing in the presence of the dissociating pulse, as a function of energy of the deep-UV pump pulse, for the case of atmospheric oxygen emission. Inset in (b): the spectrum of backward air lasing; and inset in (c): the far-field intensity profile of the generated backward-propagating laser beam.[33]
